11
Open Loop Components
Major components in an open loop/well system include:
• Geothermal unit placed on mounting pad
• Thermostat
• Well & pump
• Pressure tank
• Supply water piping
• Discharge water piping with solenoid valves and flow regulators
• Shut-off/isolation valves and drain valves
• Electrical supply
• Duct system (except for radiant floor heating systems)
• Hot water piping (if hot water generator used)
• Auxiliary heater (if used)
Electrical
Flexible
Duct Collar
Vibration
Absorbing Pad
P/T Plugs
Condensate
Drain
Desuperheater
Connections
Auxiliary
Heater
Knockout
Low Voltage
to Thermostat
and Valve
Unit Supply
Aux. Heat Supply
Water Out
Water In
Shut Off Valves
Boiler Drains
For Flushing
Disconnects
(IfApplicable)
Rubber Bladder
Expansion Tank
Solenoid
Valve
Shut Off Valves
Flow Control
Valve
Power
Supply
Drain Valve
In
P/T Relief
Valve
Cold
Water In
Hot
Water Out
DHW
Water Out
Status Lights
Filter Access
Typical Open Loop System
ABOUT YOUR WATERFURNACE SYSTEM